diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 382a02ab5ee7..e0385b16616b 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -498,12 +498,6 @@ int tpm_pm_resume(struct device *dev)
 
 	chip->flags &= ~TPM_CHIP_FLAG_SUSPENDED;
 
-	/*
-	 * Guarantee that SUSPENDED is written last, so that hwrng does not
-	 * activate before the chip has been fully resumed.
-	 */
-	wmb();
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(tpm_pm_resume);